\documentclass{article}
\usepackage{tikz,amsmath}
\usetikzlibrary{arrows.meta}
\usepackage[graphics,tightpage,active]{preview}
\PreviewEnvironment{tikzpicture}
\begin{document}
\begin{tikzpicture}[>=Stealth]
    \draw (0, 2) -- (3, 0) node [anchor=north west] {$l_1$};
    \draw (1, 2.5) -- (4, 0.5) node [anchor=north west] {$l_2$};
\end{tikzpicture}
\end{document}
